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\title{Science AMA: We are the first people to observe neutron stars colliding
that the LIGO team detected, we're the Swope Discovery Team, ask us
anything about supernovas, astrophysics, and, of course, neutron star
collisions, AMA!}



\author[1]{SwopeTeam }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 23, 2026}


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\begin{abstract}
Hi Reddit! EDIT: And that's all for us from the Swope Team! Thank you
for the great questions. Sorry we couldn't answer every one of them. And
thank you for the reddit gold, even if it wasn't made in a neutron
star-neutron star collision. We are Ben Shappee, Maria Drout, Tony Piro,
Josh Simon, Ryan Foley, Dave Coulter, and Charlie Kilpatrick, a group of
astronomers from the Carnegie Observatories and UC Santa Cruz who were
the first people ever to see light from two neutron stars colliding. We
call ourselves the Swope Discovery Team because we used a telescope in
Chile named after pioneering astronomer Henrietta Swope to find the
light from the explosion that happened when the two stars crashed into
each other over a hundred million years ago and sent gravitational waves
toward Earth. You can read more about our discovery--just announced
yesterday--here: https://carnegiescience.edu/node/2250 Or watch a video
of us explaining what gravitational waves and neutron stars even are
here: https://vimeo.com/238283885 We also took the first spectra of
light from the event. Like prisms separate sunlight into the colors of
the rainbow, spectra separate the light from a star or other object into
its component wavelengths. Studying these spectra can help us answer a
longstanding astrophysics mystery about the origin of certain heavy
elements including gold and platinum. You can watch a video about our
spectra here: https://vimeo.com/238284111 We'll be back at 11 am ET to
answer your questions, ask us anything! Dr. Ben Shappee: I just
completed a Hubble, Carnegie-Princeton Fellowship at the Carnegie
Observatories and am mere weeks into a faculty position at University of
Hawaii's Institute for Astronomy. I'm a founding member of the ASAS-SN
supernova-hunting project. Dr. Maria Drout: I am currently a NASA Hubble
Postdoctoral Fellow at the Carnegie Observatories and I also hold a
research associate position at the University of Tornoto. I study
supernovae and other exotic transients. Dr. Tony Piro: I am a
theoretical astrophysicist and the George Ellery Hale Distinguished
Scholar in Theoretical Astrophysics at the Carnegie Observatories. I am
the P.I. of the Swope Supernova Survey. Dr. Josh Simon: I am a staff
scientist at the Carnegie Observatories. I study nearby galaxies, which
help me answer questions about dark matter, star formation, and the
process of galaxy evolution. Dr. Ryan Foley: I am a a faculty member at
UC Santa Cruz. I represented the Swope Team at the LIGO and NSF press
conference about the neutron star collision discovery on Monday in
Washington, DC. Dr. Charlie Kilpatrick: I am a postdoc at UC Santa Cruz.
I specialize in supernovae. Almost Dr. Dave Coulter: I am a second year
graduate student at UC Santa Cruz. I am a founding member of the Swope
Supernova Survey. EDIT: Here's our team! https://imgur.com/gallery/8lZyg%
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